Using them for a necklace

I love these charms and decided to use them for two necklaces. I split into two groups, one more halloween oriented Crow, Spider, Skull and used the other man, woman, flourish. I felt I could wear that one anytime, since they were less Halloween-ish. I knocked off 1 star because some of the centers weren't adheared as well as I would like. I can see a few lifting over time. I would have liked better quality control here.